Colts general manager Ryan Grigson (left), shown chatting during camp with owner Jim Irsay, has some tough decisions to make this week to finalize the 53-man roster.

Written by

Phillip B. Wilson

It sounds like the Colts exhaled a sigh of relief Sunday after an MRI revealed LT Anthony Castonzo suffered a mild MCL sprain, and the injury wasn't as serious as it could have been.

Colts coach Chuck Pagano optimistically suggested the blocker who protects QB Andrew Luck's blind side could be back by the season opener against Oakland. So Saturday's scare, with Castonzo limping off after just three plays, appears to be no more. Even if Castonzo isn't ready, he is a tough guy and don't expect him to miss much time. That he won't play in Thursday's preseason finale was to be expected. Starters don't ...